DCN for Advanced LIGO Polishing Revision ITM and ETM

Document #:

LIGO-E0900095-v1

Document type:

E - Engineering documents

Abstract:

ITM E080511-v2
FROM
Optical Surface Figure, measured over the central 160 mm diameter
Surface 1: Spherical, concave. Radius of curvature: 1934m ± 3m.

TO - V3
Optical Surface Figure, measured over the central 160 mm diameter
Surface 1: Spherical, concave. Radius of curvature (R): 1934 m -5, +15 m absolute accuracy
ROC precision: R ± 3 m where 1929 m = R = 1949 m for all ITM optics

Similarly
ETM E080512-V2
FROM
Optical Surface Figure, measured over the central 160 mm diameter
Surface 1: Spherical, concave. Radius of curvature: 2245 m ± 3 m.

TO - V3
Optical Surface Figure, measured over the central 160 mm diameter
Surface 1: Spherical, concave. Radius of curvature (R): 2245 m -5, +15 m absolute accuracy
ROC precision: R ± 3 m where 2240 m = R = 2260 m for all ETM optics

Files in Document:

• E0900095-v1_TM_ROC_Change.pdf (file is not accessible)

Other Files:

• E0900095-v1_TM_ROC_Change.doc (file is not accessible)

Topics:

• Final Design
• Core Optics

Authors:

• GariLynn Billingsley

Notes and Changes:

There are no substantive drawing changes. Just updating the specification version number

Related Documents:

• LIGO-E080511-v3: E080511 ITM Polish
• LIGO-E080512-v3: E080512_ETM_Polishing_Specification